37 Utility Patents
#3,060 in Tokyo
#13,848 in Japan
#65,772 in the World
Forward Citations = 133
Company Filing History:
Kabushiki Kaisha Topcon

4. 4 out of 52,730

5. 3 out of 105
Toyo Ink Mfg. Co., Ltd.
where one patent can have more than one assignee
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